# How do you solve #15x-10y=-5# and #15y=5+10x# using substitution?

##### 1 Answer

#### Answer:

#### Explanation:

Since every term in both equations is divisible by

In the second equation, let's divide all terms by

This is where the substitution comes in...let's plug this value for

Distributing the

Let's make all terms have a common denominator:

Now, we can simplify this further:

Let's solve for

Hope this helps!